Edge-compressed tilting armature for a vehicle solenoid valve

Abstract

A tilting armature for a vehicle solenoid valve, including: a ferromagnetic tilting armature for the vehicle solenoid valve which, by establishment of a magnetic field, is configured to move the tilting armature into one of two positions such that a magnetic flux, associated with the magnetic field, through the tilting armature is in the position conducted through at least one surface of the tilting armature across a gap to form a closed flux loop, wherein the tilting armature is tiltable between the two positions about an axis of rotation that is fixed with respect to the vehicle solenoid valve; in which an enlargement of the at least one surface of the tilting armature by an edge upset of the tilting armature is configured to reduce a magnetic resistance through the gap. Also described are a related vehicle solenoid valve and a related method.

The invention claimed is: 
     
       1. A tilting armature for a vehicle solenoid valve, comprising:
 a ferromagnetic tilting armature for the vehicle solenoid valve which, by establishment of a magnetic field, is configured to move the tilting armature into one of two positions such that a magnetic flux, associated with the magnetic field, through the tilting armature is in the position conducted through at least one surface of the tilting armature across a gap to form a closed flux loop, wherein the tilting armature is tiltable between the two positions about an axis of rotation that is fixed with respect to the vehicle solenoid valve; 
 wherein an enlargement of the at least one surface of the tilting armature by an edge upset of the tilting armature is configured to reduce a magnetic resistance through the gap, 
 wherein the tilting armature is in the shape of a circular disk, above a surface of which heads of two spherical-cap joints and a spring fixture rise in relief, and 
 wherein a surface of the tilting armature at the gap is enlarged by the edge upset of the tilting armature, so as to reduce a magnetic resistance of the gap, so as to promote a force with which the tilting armature is held in a position, and wherein the force that causes the tilting armature to be moved into the position is also increased. 
 
     
     
       2. The tilting armature of  claim 1 , wherein the tilting armature includes a ferromagnetic high-grade steel. 
     
     
       3. The tilting armature of  claim 1 , wherein the tilting armature is mechanically connectable to the vehicle solenoid valve by one or more pivots on the axis of rotation, wherein the pivots are each configured as a spherical-cap joint. 
     
     
       4. The tilting armature of  claim 1 , wherein the tilting armature has one or more depressions or projections to allow the abutment or the mounting of one or more springs by which, in the absence of the magnetic field, the tilting armature is tilted into and held in the position into which it is not moved by the magnetic field. 
     
     
       5. The tilting armature of  claim 1 , wherein the tilting armature has one or more mounted or inserted molded parts composed of a material that is suitable for ensuring a fluid-tight seal of a valve opening and/or damping of an impact against the tilting armature. 
     
     
       6. A vehicle solenoid valve, comprising:
 at least one valve opening having a tilting armature, wherein the tilting armature includes:
 a ferromagnetic tilting armature for the vehicle solenoid valve which, by establishment of a magnetic field, is configured to move the tilting armature into one of two positions such that a magnetic flux, associated with the magnetic field, through the tilting armature is in the position conducted through at least one surface of the tilting armature across a gap to form a closed flux loop, wherein the tilting armature is tiltable between the two positions about an axis of rotation that is fixed with respect to the vehicle solenoid valve; 
 wherein an enlargement of the at least one surface of the tilting armature by an edge upset of the tilting armature is configured to reduce a magnetic resistance through the gap, 
 wherein the tilting armature is in the shape of a circular disk, above a surface of which heads of two spherical-cap joints and a spring fixture rise in relief, and 
 wherein a surface of the tilting armature at the gap is enlarged by the edge upset of the tilting armature, so as to reduce a magnetic resistance of the gap, so as to promote a force with which the tilting armature is held in a position, and wherein the force that causes the tilting armature to be moved into the position is also increased. 
 
 
     
     
       7. The vehicle solenoid valve of  claim 6 , wherein the valve opening is closed in a fluid-tight manner in one of the two positions and is open, so as to allow a passage of fluid, in the other of the two positions. 
     
     
       8. A method for producing a tilting armature for a vehicle solenoid valve, the method comprising:
 clamping a tilting armature blank into an edge forming machine; and 
 edge-upsetting the tilting armature blank to form a bulge of the tilting armature blank in an edge region, such that a tilting armature with an edge upset of predetermined size and shape is produced; 
 wherein the tilting armature is tiltable between two positions about an axis of rotation that is fixed with respect to the vehicle solenoid valve, 
 wherein the tilting armature is a ferromagnetic tilting armature for the vehicle solenoid valve which, by establishment of a magnetic field, is configured to move the tilting armature into one of the two positions such that a magnetic flux, associated with the magnetic field, through the tilting armature is in the position conducted through at least one surface of the tilting armature across a gap to form a closed flux loop, and 
 wherein an enlargement of the at least one surface of the tilting armature by the edge upset of the tilting armature is configured to reduce a magnetic resistance through the gap, 
 wherein the tilting armature is in the shape of a circular disk, above a surface of which heads of two spherical-cap joints and a spring fixture rise in relief, and 
 wherein a surface of the tilting armature at a gap is enlarged by the edge upset of the tilting armature, so as to reduce a magnetic resistance of the gap, so as to promote a force with which the tilting armature is held in a position, and wherein the force that causes the tilting armature to be moved into the position is also increased.